Improved electrocardiosignal noise reduction method based on singular spectrum analysis
A technology for electrocardiographic signals and electrical signals, which is applied in the field of noise reduction processing of electrocardiographic signals, and can solve problems such as difficulty in removing noise.
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[0038] Embodiment 1: apply a kind of improved electrocardiographic signal denoising method based on singular spectrum analysis of the present invention to the electrocardiographic signal (ECG) that adds 10dB Gaussian white noise, its flow process is as follows figure 1 Shown; The data of present embodiment comes from open database MIT-BIH Arrhythmia Database; Workflow is as follows:
[0039] (1) Select a 10s segment in the record numbered 100 in the MIT-BIH Arrhythmia Database, with a sampling rate of 360 Hz, and preprocess it using filtering and other methods to make the original signal as clean as possible; the obtained clean ECG Signal such as figure 2 As shown in (a); add 10dB Gaussian white noise to the obtained original clean ECG signal, and the noisy signal obtained after adding noise is as follows figure 2 as shown in (b);
[0040] (2) For the 10s noisy signal segment obtained in step (1), set the window length L to 90, map the original ECG signal with a data lengt...
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